Tech-Roll™ LHR

Indotech’s TECH-ROLL™ LHR is a low-headroom door that requires only 13 inches of head clearance for installation

  • Ideal solution for building openings that have restrictive heights such as underground parking garages.
  • Springless
  • Maximum size 21′ W x 9’6″ H
  • Curtain SBR black rubber 1/4 inch
  • TECH-LOCK Endlocks
  • Low-profile steel guides
  • Painted, galvanized or stainless steel guide rails available
  • Break-away bottom bar for easy re-installation of the door’s curtain after impact
  • Wireless soft-touch safety edge bottom bar



Continuous endlocks along the full height of the door’s curtain create a tight seal against all weather conditions

Operating speed allows substantial energy savings

Reduced operating expenses due production stoppages

Low cost to repair

Minimal Maintenance

Doors can function even after impact and easy re-installation after impact which reduces production stoppage time

Many security features available

Tech-Roll™ video


Tech-Roll™ LHR





Hollow shaft or chained drive industrial operator


From -40°C to 50°C


1/4-inch SBR black (EPDM blue on special order)


Tech-Lock; patented continuous double sealed

Bottom Bar

Knock away design with pintle hinge


Low-profile steel guides

Inertia Brake

Available safety option

Guide Colors

Color Options Available

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For illustration purposes only



The TECH-ROLLTMrubber curtain is available in SBR black rubber, MSHA black rubber (mining spec) and EPDM blue rubber. The rubber is 1/4-inch thick and reinforced with a polyester centre that ensures flexibility and durability in temperatures between -40°C and + 50°C. Its strength resistance is 2,000 psi.




Indotech’s TECH-LOCKTM are continuous the full height of the door to create a weather-tight seal. The system creates a frictionless movement of the door’s curtain within the guides when the door is opening and closing.



Bottom bar

The bottom bar is made of steel and equipped at the center with a pintle hinge that allows the release of the curtain in case of impact, this ensures a fast and easy re-installation of the curtain.



Guide Rails

The steel guide rails are designed with adjustable compression springs that allow the release of the curtain in case of impact and are ajustable to adapt to various windloads. In addition the guides can be opened for full inspection of the door’s curtain and ease of maintenance.



Electric operators

The TECH-ROLL series of electric operators are high-performance industrial operators designed for intensive use and require minimal maintenance. They are equipped with a clutch system and an over-sized brake that allow the door to run smoothly. In addition, the operators are equipped with a chain hoist and power safety switch in cases of emergency.



Inertia brake

Optional protection system that prevents the door from closing in the event of mechanical failure. This security system is unique to Indotech


Additional options and accessories

  • Programmable control panel
  • Windows
  • Photocells
  • Mouvement detectors
  • Personalized door frame color.
  • Custom Lettering

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Certifications & Associations

  • CWB